Dropper combined with cap for phials and the like



\ April 29, 1941- R. J. M. FIALIP DROPPER COMBINED WITHICAP FOR PHIALS AND THE LIKE Filed Aug: s, 1938 v INVENTOR. Roar/er ./AN Mm: fi/HJ Patented Apr. 29, 1%41 stars it ear DRQPFER CQMBINEB WITH CAP F03. PHIALS AND THE LIKE Robert Jean Marie Fialip,

to Lucien Picard, Fri

Forges, France Paris, France, assignor leuse par Briis-Scus- 5 (liah is.

The invention relates to droppers comprising means for their automatic fixation to phials or bottles.

Generally the indie-rubber droppers, eventually provided with a discharging beak, are fixed, either by being pushed over the phial neck, or by introducing the dropper cap or stopper into the interior of the neck.

In case of the cap or stopper heading the phial,

it is apt of deterioration after a lapse of time,

owing to the india-rubber tension. In case of this cap being covered by a protecting envelope special fitting means are required. If the fixation is to be secured by simply introducing the cap or stopper into the phial neck, this cap is apt of removal from the phial on removing the protecting cover, or of driving into the phial.

The cap combined with a dropper, according to the present invention obviates the forecited drawback-s in the following manner:

The india-rubber cap cast together with its beak comprises in its lower part a collar obliquely extending toward the exterior, or a flange or a projection formed by a thickened cap portion and placing itself inwardly against the shoulder or the rounded oil inner part of the phial.

This shoulder or rounded 01f part is formed by the connection of the phial neck to the phial body. It is therefore obvious that the stopper introduced into the phial neck is sufhciently maintained in the interior of the phial against an outwardly exerted traction eifort.

Since a joint is required between the extremity of the neck and the inner shoulder of the protecting cap, this condition is compliedwith by utilisation of a removable india-rubber ring pushed over the stopper and resting upon the neck. This india-rubber ring permits of using the stopper in necks of slightly diiferent height and of always securing a tight joint at the neck extremity when fitting the protecting cap thereon.

The drawing appended, represents, merely in way of example, several embodiments of the invention.

Figure 1 shows the outward View of a cap together with a dropper and with a removable tightening ring.

Figure 2 shows the same cap in section, fitted to a phial.

Figures 3 to 5 relate to other embodiments.

In the example shown in Figure 1, the stopper is formed by a cap of india-rubber, the mantle l of which abuts into a discharging beak 2 and extends outwardly in its lower part 2 so as to have there a diameter greater than the one of the mantle- This lower collar can be either obtained by a simple deviation of the mantle or by appropriately thickening the material at the iower mantle part. It is also possible to replace this collar by a simple flange, as shown at 3 in Figure 3.

The purpose of this collar 3 or of the flange 3' is to apply, after introduction of the mantle into the phial neck, against the shoulder or rounded off portion 3 of the phial and to offer thereby a resistance against any outwardiy exerted traction effort, the stopper being in this way well maintained within the interior of the phial neck. 7

Since this stopper is preferably covered by a protecting cover, for example of Bakelite, the hermetic tightness of this protecting cover is secured by placing over the stopper an indiarubber ring 5 which ring therefore is compressed when screwing home the protecting cover over the phial.

Normally the india-rubber ring 5 slightly squeezes the mantle l in its diameter and it is obvious that the contraction obtained by this squeezing constitutes another means for retaining the stopper and for preventing it from driving down into the phial, though the adherence of the stopper to the neck wall is already sufiicient to avoid all sliding in the downward direction.

In order to utilise the dropper, it is necessary to incline sufficiently or, preferably, to turn the phial upside down so as to admit the liquid into the stopper and the dropper, whereupon by pressing the stopper the liquid is constrained to discharge itself so as to permit the required instillation.

According to the embodiment represented in Figure 4, it is possible to combine a cap with a slit ring.

This cap I of india-rubber has no inner projection. The ring 6, of any appropriate material (Figures 4 and 5) is slit at 1 so as to act as a spring against the interior of the mantle of the cap I and to apply it under pression against the Wall of the neck.

With this embodiment as Well as with the embodiment according to Figure 2, the removal of the cap in case of emergency is obtained by a simple traction thereon.

The invention does not limit itself to the embodiments shown and. described merely in the way of example, manifold modifications, both with regard to details as to the general arrange-,

ment, being possible, especially with regard to the shape of the phial, the one of the neck, and so on, without departing from the main inventional idea.

What I claim is:

1. A dropper for phials, bottles or the like comprising an elastic substantially cylindrical body having a beak extending therefrom, a portion of said cylindrical body being projectable within the neck of said phial, retaining means positioned at one end of said portion for engagement with the wall within said neck to resist a pull of said body in outward direction, and adjustable holding means arranged adjacent the other end of said portion contracting the latter at the edge of said neck.

2. A dropper for phials, bottles or the like comprising an elastic substantially cylindrical body having a beak extending therefrom, a portion of said cylindrical body being projectable within the neck of said phial, retaining means positioned at one end of said portion for engagement with the wall within said neck to resist a pull of said body in outward direction, and an elastic ring embracing said portion at the other end thereof and displaceable thereon for engagement with the edge of said neck.

3. A dropper for phials, bottles or the like comprising an elastic substantially cylindrical body having a beak extending therefrom, a portion of 7 said cylindrical body being projectable within the neck of said phial, retaining means positioned at one end of said portion for engagement with the wall within said neck to resist a pull of said body in outward direction, said retaining means being integral with said portion of said cylindrical body, and adjustable holding means arranged adjacent the other end of said portion contracting the latter at the edge of said neck,

4. A dropper for phials, bottles or the like comprising an elastic substantially cylindrical body having a beak extending therefrom, a portion of said cylindrical body being projectable within the neck of said phial, retaining means positioned at one end of said portion for engagement with the wall within said neck to resist a pull of said body in outward direction, said means including an enlargement provided at the edge of said portion for engaging the shoulder of the phial neck, and adjustable holding means arranged adjacent the other end of said portion contracting the latter at the edge of said neck.

5. A dropper for phials, bottles or the like comprising an elastic substantially cylindrical body having a beak extending therefrom, a portion of said cylindrical body being projectable within the neck of said phial, retaining means positioned at one end of said portion for engagement with the wall within said neck to resist a pull of said body in outward direction, said means including an external flange arranged at the utmost edge of said portion, and adjustable holding means arranged adjacent the other end of said portion contracting the latter at the edge of said neck.

ROBERT JEAN MARIE FIALIP. 

